Improvement in ejectors for oil-wells



Unirse STTES PATENT OFFICE.

J. D. AXGIER AND FREDERICK CROGKLH, OF TITUS'VILLE, PENNSYLVANIA.

llVEPROVEMENT lN EJECTORS FOR OEL-WELLS.

lpfr-ilcation ibi-ming part of'lictlers Patent No. 115.463, dated December lll, letti.

F0 all whom, z' may concer/t:

Be it known that we, J. l). ANGInR and FREDERICK GRoeItnR, of Titusville, rawford county, inthe State of Pennsylvania, haveinvented certain new and useful Improvements in Apparatus for Forcing Oil, &c., out of Deep Wrells, and we do hereby declare that the following is a full and exact description thereof,i rc'lerencebei ng had to the accompanying d rawings, making part of this application.

Our invention is intended more particularly 'or raising oil 'from deep wells, but may be employed with advantage for raising ot-her liquids.

Previous to our invention it has been suggested to raise oil from deep wells by means of two tubes or pipes (one considerably smaller than the other) arranged one within the other, and a blast of air (or steam) forced down one of said tubes. But experiment has demonstrated that such a method with the apparatus heretofore suggested is not practically successful in its operation, for (among other reasons) the action of the blast on the top of the oil in the well has a very great tendency to choke up the veins or supl'ilying'channels of the well,and, besides, when the oil is below the lower end of the supply tube it will not be caused to ascend by the descendingr blast, and the well has to fill up again before the oil can be again started.

Uur invention has l'or ils obiect a novel apparatus ormachincby which the employment g is arranged centrally within the tube A, and

ot' a blast of air (therein) is caused to successfully discharge the contents of ille well in a continuons iiow, and at the same time induce toa greater yield from the veins or supply channels, in lieu of rendering them less productive, as heretofore; and to these ends our invention consists in the en'iployment, in combination with a discharge or eduction pipe and a blast-pipe arranged therein, of a deilectorso arranged as to sustain the downward pressure of the blast and deflect it upward, thus relieving the contents of the well from pressure and inducing a vacuum over it, by which it is induced to ilow trom the veins and into the ejecting apparatus.

To enable those skilled in 'the art to make and use our invention, we will proceed to dc scribe it more particularly, referring by letters tothe accompanying drawings, forming part of this application, and in which- Figure l is a vertical (partial) section of an oil-well provided with one of our improved ejecting-machines with which we have successfully raised oil nearly iive hundred feet. Fig. 2 is a similar view illustrating a modification of our said invention in which the deiiector is constructed and arranged so as to disperse the blast near to the internal surface of the* outer pipe, in lieu of concentrating it, as in Fig. l, around the inner or blast tube and near the center of the ascending column ot' material; and Fig. 3 is a detail view of part ot' the apparatus seen at Fig. l.

In Fig. l, A is the eduction-pipe, which is inserted in the well after the fashion usually adopted in putting in the tubing for a pump in deep wells. It is suspended from a checkplate at the top ot' the well in the ordinary way of suspending such tubing, and may have attached to its lower end apiece of tubing, G, such as is generally1 employed in pumps for oil-wells as a workingbarrel. This piece of tube (t may be perforated, as at j j j, (it deemed expediena) to facilitate the induction of oil from the veins opening out of the sides of the well. The tubing A is furnished with the usual scedbag packinga'., by which the .surfacem'ater kept out 0i the well. The

tube A is formed or provided with an internal annular collar, j", so shaped as to form a sudden contraction of the bore of said tube near its lower end and then a gradual en largement ol' the bore down to the extremity of said tube, as clearly shown.

B is the mai n portion of the blast-pipe, wh ich is supported by means -of a straddle, e, which rests on the upper edge of collar f, and on which rests the coupling d of said pipe B.

Into the coupling (Z is also screwed the upA per end of the tube (l, which is a continuation ot' a less diameter of the blast-pipe B. This tube C is perforated at .fr at, &c., near its lower end, and has secured to its lower end a de ileetor or thimble, g, which surrounds the lower portion of said tube C, and which is closed at its bottom and open at its upper cud, and tapers upward and toward the central tube, (l, as clearly shown. This deiiector g is so arranged as to be partially within and concentric to the collar f, and its tapering contour about conforms to the taper otl said collar. y p

O O are three or more slender braces, by which the thimble or dei'lector f/ is held in its` central position within the tubing.

From what has already been said it will be understood that the exterior tubing, A G,'is suspended in the well-known manner and provided with a seed-bag, and that the internal tubing, B C, with its detlector g, is all sustained within the aforesaid tubing by means of the stand or straddle e, resting on the shonlder or collarf of pipe A.

At Fig. 8 we have shown the straddle e in perspective. fv In the machine which we have practically tested the tube A is about two inches in di ameter, the tube B oneineb, and C one-half inch in diameter. In the drawings we have -shown about the sameproportions to the parts named. l

In the machine just mentioned the annular space at s between the upper edge of collar g and the exterior of tube C was about a full one-eighth of an inch, the annular space between upper edge of defiector g and interior of collarf about the same; the space between upper edge of defieetorf/ and tube G about one-sixteenth'of an inch full, and the entire length of tubing about five hundred feet. XVe do not, however, propose, of course, to limit ourselves to these proportions, though they produce successful results. The tube vA may lead at its upper end to any desirable recepta cle for the material forced from the well, and the upper end of tube B leads to and is connected with a suitable air pump or. apparatus for forcing into said tube a blast of air.

The operation of a machine such as shownA at Fig. l may be thus described: A blast of air being forced down the tubes B C escapes through the perforations (a: in C) into the-deilector g, and escapes from thence at its top,

as indicated by the black arrows, ascendingK through the tube A (and around the outside of pipe B.) The escape ofthe blast from the top of the dei-lector and upward through the space at sinduees a vacuum in the well, (between the space S and the oil,) and thus causes the ascension of the oil (and water and gas) through the annular space or orifice s up into the bore of tube A and above the top of col# lar f. The ascending mass of material is then caused to continue `its ascent by the force of the blast and its intermingling with and lightening of the said mass,and the oil (and its contained water and gas) together with the blast escapev in a conti nuous overflow at the top of the tubing A.

It is essential ,that th e annular orifice through which the oilis elevated by the action creating a. Vacuum should be comparatively small, to insure a. ready and perfect vacuum, (by the ascension of the b1ast,) and it is also expedient to have the eduetion-tube from ,that point where the action of the vacuum ceases comparatively pretty large, to admit of sufficient space for the agitated column of blast and mixed material which ascends through the tubeA and to afford, by means of the shoulder formed at the contraction, a support to the lower end of this column of material, thus avoiding any tendency of said lower end to l choke rip the passage through which the material from the bottom of the well ascends by reason of the blast.

The red arrows illustrate the directions in which the oil iows` into and is raised and forced through theejecting apparatus.

In Fig. 2 we haveshown (as before remarked) a modification of our invention, diftering from the machine shown at Fig. l only in the form and arrangement of the deector (and the arrangement of 'the supporting projeetion or collar.) In this figure We have shown a deflector, f, which, instead of tapering inward as it extends upward that is, toward thecentral tube,B-tapers or flares outward toward the internal circumference ofthe outer tube A, and the collar d is arranged on the tube B and inside of the upper edge o1' the deieetor. The deflector f is secured to .the lower end'of tube B, (which is perforated at c c, &c.,) and is held centrally in the bore of A by means of three or more radial arms, c. The tube B, with its attachments, is in this case supported by a stand, g, which rests on the upper edge ofthe lower tube or barrel. F, which is secured to the tube A. Asy usual, the tubing A is suspended from a check-plate at the mouth or top of the well. In this ure,.as in Fig. 1, we have illustrated the directions taken by the blast by black arrows, and those followed by the material raised out of the well by red arrows.

Although the construction of machine shown at Fig. 2 may be made to werk in some cases, it is evident that inasmuch as it disseminates the blast around the circumference ofthe column to be elevated in tube A it cannot work so successfully and satisfactorily as the mathe blast is concentrated toward the center of the column of material to be forced up through tube A. By partially unserewing (and screwing `.up again) the deflector j' on lower end of screw B, (see Fig. 2,) the anA nular space between upper edge of deliectcr 1 and collar d may be varied; but we propose to proportion the parts properly, and do not anticipate, nor have we found in practice,any necessity for much or any adjustment of the parts to vary the size of the orice through which the blast escapes into tube A.

Having fully described the construction and 'operation of our improved ejector, what we claim as new, and desire' to secure by Letters Patent, is-

The employment 0f the deflector in combination with the two tubes and annular 'projection, substantially as described, for the pur pose set forth.

J. D. ANGIER. I FREDERICK (1R-OCI( lh. )Vitnesses to Angier: ANDREW I. Tom), CHARLES SPEER. \Vitnesses to Crocker:

J. N. McIN'rIRE,

ANDREW I. Tom).

chine shown at Fig. l, in which the force of 

